If the circumference of a circle is 18π cm, then the area of the circle is
A. 18π square cm
B. 18π2 square cm
C. 81π square cm
D. 9π square cm
1
A
2
D
3
B
4
C
If the circumference of a circle is 18π cm, then the area of the circle is
A. 18π square cm
B. 18π2 square cm
C. 81π square cm
D. 9π square cm